Ruined Portals Treasure Hunting

So I was thinking and I hope I'm not the only one suggesting this. But why hasn't anyone had it cross their minds that atleast Ruined Portals that generate with Piglin Bastions should contain some treasure map. Heck probably a compass that is linked to loot in the Nether or Overworld. I mean it could be at the other side of the Nether Portal, I feel like there should be more of a Correlation between the Nether and the Overworld and this is my suggestion to the community. Plus the Portals generate less frequently now so it would be an unexpected journey if you just so happened to find one while exploring.